Senior React Developer

Santex is a global Certified B technology company as well as one of North America's fastest-growing companies, according to the Inc. 5000. It’s present in 18 countries and over 100 cities, and headquartered in Argentina with offices in the United States, Mexico, and Peru.

Its two service lines — AI Tech Consulting and AI-Optimized Engineering — help organizations comprehensively adopt technology, expand their capabilities, and improve business outcomes at scale.

The same approach defines its culture: Santex has 80.4% employee engagement (global average: 21%), 8% annual turnover (tech sector: 20–25%), 9,369 training hours invested in 2025 — more than double the global average —, and a 26.5% year-over-year reduction in carbon footprint, achieving carbon neutrality through offsetting.

Santex. A company with purpose and judgment. Yes, it's possible.

We are an Equal Opportunity Employer and are committed to fostering an inclusive and diverse workplace. We do not discriminate on the basis of race, color, religion, sex, gender identity or expression, sexual orientation, national origin, age, disability, veteran status, genetic information, or any other characteristic protected by applicable law. All qualified applicants will receive consideration for employment without regard to any of these factors. We strongly encourage candidates from all backgrounds to apply.

Job Description: We are seeking a Senior React.js Developer to join our team. The ideal candidate will have extensive experience in building dynamic and responsive web applications using React.js.

Responsibilities:

• Develop and maintain web applications using React.js.

• Collaborate with cross-functional teams to define, design, and ship new features.

• Write clean, maintainable, and testable code.

• Optimize applications for maximum speed and scalability.

• Stay updated with the latest industry trends and technologies.

Requirements:

• Bachelor’s degree in Computer Science or a related field.

• 5+ years of experience in front-end development.

• Proficiency in React.js, JavaScript, HTML, and CSS.

• Strong understanding of state management libraries (e.g., Redux).

• Experience with RESTful APIs and front-end build tools.

Desirable:

• Knowledge of TypeScript.

• Experience with other front-end frameworks (e.g., Angular, Vue).

• Familiarity with Agile development methodologies.

Advanced English:

• Excellent verbal and written communication skills in English.